Pusat Pengajian Sains Perubatan - Dataset

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Browsing Pusat Pengajian Sains Perubatan - Dataset by Author "Jiahour, Leong"

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    Anthropometry study of knee and correlation to the sizing of total knee arthroplasty in malay population
    (2022)
    Jiahour, Leong
    Background: The accurate position and well fit total knee arthroplasty (TKA) implant that match with the resected bone are the important factors to give best outcome for TKA. Currently available TKA implant are based on the morphometry of the Caucasian knee. We believed there is discrepancy in matching current available TKA implant with Malay knees which lead to sub-optimal implant fitting and subsequently a poorer outcome. The objective of this study is to analyze the simulated resected distal femur and proximal tibia of Malay population and correlate to the current TKA implants by using CT scan image. Methodology: Radiological anthropometric measurement of 139 knees (44 males and 33 females) was measured from CT imaging record of all Malay patients who underwent CT lower limb in Hospital Universiti Sains Malaysia (HUSM) from January 2017 till December 2020. The data includes femoral anteroposterior (fAP), femoral mediolateral (fML), tibial anteroposterior (tAP), tibial mediolateral (tML) and condylar twist angle (CTA). The femoral and tibial aspect ratio was calculated and correlated to 2 currently used TKA implant systems in HUSM which are the Stryker and the Amplitude. Results: The mean fAP values were 52.3mm (SD 3.12) and 48.5mm (SD 2.50) for men and women, while the mean fML values were 72.7mm (SD 3.12) and 63.4mm (SD 3.12). The mean tAP values were 49.1mm (SD 2.60) and 43.9mm (SD 2.53) for men and women, while the mean tML values were 74.6mm (SD 3.64) and 65.3mm (SD 2.89). The mean CTA value were 5.2° (SD 1.94) and 4.6° (SD 2.21) for men and women. Both studied TKA implant had larger fML dimension than the resected femur for a given fAP dimension. Conclusion: The TKA implant evaluated in present study are not optimal for Malay knees which more profound in distal femur component for female. The TKA implants evaluated need to be adjusted to have a better match with Malay populations, especially femoral component. The result from this study can provide the fundamental data needed for TKA implant design that better fit to Malay Population